Speed measuring and controlling device.



J. H CORE. SPEED MEASURING AND CONTROLLING DEVICE.

- APPLICATION FILED OCT 10. 1911.

1,298j717ia Patented Feb. 11, 111111.

WITNESSES ATTORNEYS To (ZZZ whom 2'3 may concern:

Be it known that L Jones l-i. Gone, a citizen of the United States, enil a resident of Nashville, in the county oi Davidson State of Tennessee, have invented a new encl useful improvement in Sgeevl Mees' ring and" Controlling Devices, of which the following is a, specification.

My present invention rel-etes generally to inigrovenients in devices for measuring speed and controlling thespeed of vehicles, and. more particularly to improvements upon my Patent 1110900 of Septembei'lo, 191%, my aim being the provision ofe more simple, generally effective construction and arrnngement for the purposes which will hereinafter be set out in detail.

in the accompanying drawing, which illustrates my invention, and terms a part icelly through which is mounted a shaft generally indicated at ii and "the lower OTC which is provided with o gear Wheel i for instance, seen in Fig, 2, to be u by an internally toothed gear' 13, the

'j' lei of which is usually mounted at one or" e flexible shaft generally inelicosecl at i and extending from the engine shaft of v in connection with which the the shalt ll. Within the casing 10 is centrifugal vice in the nature of a goveinor, the Weighted z.1Il1S l-5 of which are connected. at their upper-cool lower ends, resectively, to collars lo and 17, the former O which is onei'ily secured to the shaft, he letter of W 'ch formed at the end of sleeve 18 loosely disposer on provided with on. ennuin which is seated. an actuating 303E, G'F- Egeoiicetiou of Letters Patent.

Application filed Gctooer 10, 191?.

of the collar 1'1 with its sleeve 18 resist outwercl movements of arms 15 in olposing their move under the centri'hlge-l tion ofthe shaft 11.

Above the upper end of the shaft 11, zincl loosely mounted upon a shaft 1, is e horizontal number Wheel 22, the axis of Which is in the same plane with the axis of the shaft 11, said shaft 21 having gear secured thereto below the number Wheel engaged by a hoi'izontel incl: 2%, the letter 01: which is shiftehle in guides 25 and controlled by e springfi. I?

One encl of the rack 2 L is engagezl bv the upright arm of a bel crank lever: the lower horizontal arm of which is oivotolly connected to the upper end of a connecting rod 2-7, the lower end of which is siniil'i' v 35 connected to the outer end of a lever 28 .ul crumed intermediate its ends at -within the casin and having e laterally project 111g pin 30 its inner end er-itenclino through the slot of an extension at one s side of the actuating ringlil.

Thus, when under the centrii force, the collar 17 "rises ill tensionspring 20 with its sleeve 18 and the actuat- 111g ring 19, lever 28 is rocl z-fl no 3; fulcrum 25 and the hell crank iiov rocked upon its fulcrum through. t necting IOCl This operates to incl; bar 2% in the direction of its and, through its connection with i causes rotation of the nunibci' v: The nuin'o i0. "face of the Wheel shows, in use, through a sight opening 31 in fiont plate 32 of the casing 16, as s en.

1 connect movements are utilized, may he a; all times.

At a. point diametrically extension 19*, the actuating second slotted extension 19 the laterally projecting pin encl of e. lever 33%, projects. fulcrumeil oi upon a 32cc! to and insulated fronithe C353 dou'nu'oz" normally l'esistefl by so? at its lower e oi thee-etc, one to 3 hrs portion of the casing 10, is. a contact arm 38 having one end disposed beneath the outer end of the contact lever 34 and normally in spaced relation thereto, and having its opposite end ,pivoted to a portion of the casing at 39 and insulated therefrom. lh1s contact arm 38 isheld by a spring 40 against the insulated cam 41 of a shaft 42 mounted .below the arm- 38 and having a keyslot 43 extending longitudinally therein from its outer end.

The shaft 42 is also provided with a gear segment 44 in engagement with the gear 45 of a stud shaft carrying a vertically disposed number wheel 46 whose surface is adapted to show through a sight opening 47 of the front 32 of the casingadjacent an opening through which access may be had to the shaft 421 I To the pivoted end of the contact arm 38 is extended a wire '48 leading, for instance, from the magneto of a vehicle driven by an internal combustion engine or, from the battery circuit of an electrically driven vehicle, so that. when the speed of the vehicle increases to a point where vertical movement of the actuating ring serves to shift the con tact lever 34 into engagement with the contact arm 38, the circuit will be grounded through the contact lever 34 and shafts l1 and 14.

It is obvious that by thus grounding the circuit the speed of the vehicle may be controlled so as not to exceed a given point, determined by the normal relative position of the lever 34 and arm 38, to adjust which the operator inserts a key (not shown) within the key slot 43 of shaft 42 and by rotating said shaft, shifts the contact arm 38 either toward or away from the lever 34:, dependent upon whether it is desired to permit an increase, or secure decrease, of speed at the point of control.

Thus, inasmuch as the number wheel 46 is geared to the shaft l2, it will indicate at all times that rate of speed beyond which the vehicle cannot proceed, so that by setting the wheel 46 to the zero point, it is obvious that the lever 34 and arm 38 will be in contact with one another as seen in Fig. 1, and

the vehicle will then be locked against movement.

It is obvious that 1f so dBSII'GCl, a suitable posed, the device will not only operate to lock the vehicle against movement, but may be adjusted to control the speed of the ve hicle and set a desired point in the speed, beyond which the vehicle cannot proceed.

I claim: a

i. A speed measuring and controlling device comprising a casing, a rotatable shaft within the casing, 'a member slidable with respect thereto, a centrifugal device controlled by the rotation of the shaft, for shifting said sliding member with respect thereto, a pair of actuating levers having connection with said sliding member at relatively opposite sides, a. speed} indicating wheel, connections between one of said levers and the said wheel for actuating the latter inproportion to the shifting movements of said slidable member, a contact arm Within the casing adjacent to the other of said levers, means including a rotatable member for adjusting the said contact arm toward and away from its respective lever, and an indicating wheel having a geared connection with said rotatable adjusting member, for the purpose described.

2. A'speed measuring and controlling device comprising a casing, a rotatable shaft therein, a centrifugal device mounted on and controlled by the rotation of said shaft and including a member slidable on the shaft, an actuating ring carried by said slidable member, a speed indicating device having connection with said ring, a lever within the casing also having connection with the ring, a contact arm engageable by said lever, means for adjusting said contact arm toward and away from the lever, and means for indicating the degree of adjustment thereof,'all for the purpose described.

JAMES HENRY CORE. 

